can display relation between author

db/seeds.rb

@@ -2,8 +2,9 @@ require 'factory_girl'
 require 'faker'
 require 'json'
 
-WritingJournal.destroy_all
 CoAuthor.destroy_all
+CoAuthorRelation.destroy_all
+WritingJournal.destroy_all
 
 data = File.read("db/data")
 data_json = JSON.parse(data)
@@ -16,13 +17,21 @@ name_en = name_en.map do |p| Faker::Name::name end
 email = Array.new 51,""
 email= email.map do |p| Faker::Internet.email end
 
-type = ["friend", "teacher", "student", "mate", "relation"]
+type = ["friend0", "teacher0", "student0", "mate0", "relation0", "friend1", "teacher1", "student1", "mate1", "relation1"]
+
 FactoryGirl.define do
+  factory(:type, class: "CoAuthorRelation") do |f|
+    f.sequence(:relation_translations) do |n|
+      { zh_tw: "#{type[n%type.size]}",
+            en: "#{type[n%type.size]}" }
+    end
+  end
+
   factory(:co_author_candidate, class: "CoAuthor")  do |f|
 
     f.sequence(:co_author_translations) do |n|
       { zh_tw: "#{name_tw[n]}",
-            en: "#{name_en[n]}" }
+        en: "#{name_en[n]}" }
     end
     f.sequence(:type) do |n| "#{type[n%5]}" end
     f.sequence(:email) do |n| "#{email[n]}" end
@@ -81,6 +90,9 @@ FactoryGirl.define do
   end
 end
 
+10.times.each do
+  FactoryGirl.create(:type)
+end
 
 50.times.each do
   FactoryGirl.create(:paper_record)
@@ -89,3 +101,4 @@ end
 50.times.each do
   FactoryGirl.create(:co_author_candidate)
 end
+